The tester itself is relatively simple to build ... is hooked together, the NPN/PNP pair causes the LED to light up, but the circuit is broken whenever one of the transistors is removed.

Here’s a simple FET circuit that lets you switch ... Speaking of the Pinecil, it uses an unorthodox driving circuit – it has an NPN transistor, but its base driven through a capacitor, so ...

The diagram illustrates the basic design of an NPN junction transistor ... You’re going to build two simple transistor circuits, each using a single transistor. These circuits will allow ...

This transistor switching circuit uses an npn transistor, a voltage divider (consisting of a \(5 kΩ \) resistor and thermistor) and a \(5 V\) power supply. Use the information in the table to ...